Oklahoma Landscape and Scenic Vignettes Late fall post oak, Oklahoma. Graphite on paper. Post Oak 4, pencil Autumn, Red Rock Canyon, Oklahoma. Graphite and pastel on paper. Post Oak 3, pencil Post Oak 2, pencil Hackberry trunk, Oklahoma. Graphite and pastel on paper. Post oak with snow dusting, Oklahoma. Graphite and pastel on paper. Garden poppy, Oklahoma. Graphite and pastel on paper. Red-shouldered hawk in winter post oak; charcoal and pastel on paper Creek at Martin Nature Park, Oklahoma. Graphite and chalk on paper. Share this:EmailFacebookTwitterLike this:Like Loading...